MC33365_06 Datasheet, PDF (1/11 Pages) ON Semiconductor – High Voltage Switching Regulator

MC33365
High Voltage Switching
Regulator
The MC33365 is a monolithic high voltage switching regulator that
is specifically designed to operate from a rectified 240 Vac line source.
This integrated circuit features an on−chip 700 V/1.0 A SENSEFETt
power switch, 450 V active off−line startup FET, duty cycle controlled
oscillator, current limiting comparator with a programmable threshold
and leading edge blanking, latching pulse width modulator for double
pulse suppression, high gain error amplifier, and a trimmed internal
bandgap reference. Protective features include cycle−by−cycle current
limiting, input undervoltage lockout with hysteresis, bulk capacitor
voltage sensing, and thermal shutdown. This device is available in a
16−lead dual−in−line package.
• On−Chip 700 V, 1.0 A SENSEFET Power Switch
• Rectified 240 Vac Line Source Operation
• On−Chip 450 V Active Off−Line Startup FET
• Latching PWM for Double Pulse Suppression
• Cycle−By−Cycle Current Limiting
• Input Undervoltage Lockout with Hysteresis
• Bulk Capacitor Voltage Comparator
• Trimmed Internal Bandgap Reference
• Internal Thermal Shutdown
16
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http://onsemi.com
MARKING
DIAGRAM
16
PDIP−16
P SUFFIX
CASE 648E
MC33365P
AWLYYWW
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
PIN CONNECTIONS
Startup Input 1
16
Power Switch
Drain
AC Input
Startup Input 1
Regulator
Output
8
6
R_T
C_{T 7}
Mirror
Osc
PWM
Thermal
Startup
Reg
UVLO
V_CC
3
PWM Latch
S
Driver
Q
R
BOK
BOK ₁₁
16
Power Switch
Drain
LEB
I_pk
Compensation
9
EA
10
Gnd 4, 5, 12, 13
Voltage
Feedback
Input
DC Output
V_{CC 3}
4
Gnd
5
R_{T 6}
C_T 7
Regulator Output 8
13
Gnd
12
11 BOK
10
Voltage Feedback
Input
9 Compensation
(Top View)
ORDERING INFORMATION
Device
Package
Shipping
MC33365P
PDIP−16
25 Units/Rail
Figure 1. Simplified Application
© Semiconductor Components Industries, LLC, 2006
1
July, 2006− Rev. 4
Publication Order Number:
MC33365/D